One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,7)(4,6)(5,8)(17,18,22,23)(19,26,27,30)(20,24,31,29)(21,28,32,25)(1,3)(2,5)(4,8)(6,7)(9,10)(11,15)(12,14)(13,16)(18,23)(19,27)(24,29)(25,28) involution — undirected(2,6)(5,7)(9,11)(10,13)(12,16)(14,15)(17,19,21,29,22,27,32,24)(18,20,25,26,23,31,28,30)(3,8)(5,7)(10,14)(11,16)(17,20,22,31)(18,24,23,29)(19,28,27,25)(21,26,32,30)(2,6)(5,7)(10,14)(13,15)(17,21,22,32)(18,25,23,28)(19,24,27,29)(20,30,31,26)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.